Obtaining and research of phenolic compounds from resin of Uzgen coals

Sodium phenolite and picric acid have been investigated and experimentally obtained. At constant temperature conditions. Studied and obtained phenol-formaldehyde resin by condensation polymerization method. The formation of paraisomers upon sulfonation of phenol with 98% sulfuric acid at 1000 °C indicate that the rate of the reverse reaction under these conditions is low. Control of phenol sulfonation becomes the dominant product of this reaction.